Action Button (e or space) to go upstairs
turned off enemies and various testing
Can go back upstairs now
upstairs/downstairs working

still always spawn on upstairs tile for now
Will now spawn on goal when going back upstairs

also stopped error when trying to go upstairs when on the topmost floor
needed binary file changes
Merge pull request #72 from duiker2/master

Action Button (e/space) added to go up and down stairs